javascript newThe essence of an object_js object-oriented

I used to know these things, but I couldn't explain them, and I didn't delve into them. When I was reading "Understanding JavaScript" today, I suddenly opened my eyes when I saw the author's description.

The excerpt is as follows, the author said it very clearly:


The process of creating an object in the form of var anObject = new aFunction() can actually be divided into three steps:

The first step is to create a new object;
The second step is to set the object’s built-in prototype object to the prototype object referenced by the constructor prototype;
The third step is to call the object as this parameter Constructor to complete initialization work such as member setting.